The setting moon
A long exposure image has captured star trails and the setting moon above the coast of Atlantic Ocean, Lüderitz, Namibia.
The autumn Milky Way and rising winter stars over the Grand Canyon. Red airglow brightens the horizon. Click the image-top constellation icon to see a west-looking image at this night with the Summer Triangle above the canyon. The Grand Canyon, a World Heritage Site in the American southwest at the border of Arizona and Utah, is the longest canyon on the Earth (446 km), a steep-sided gorge carved by the Colorado River steadily in millions of years.
As seen on Astronomy Picture of the Day, in this Milky Way image from Indian Himalayas there is a new star, a nova, in the middle of the Sagittarius Teapot. Click the image-top constellation icon to spot it. The erupted nova (named Sagittarii 2015 No. 2) reached magnitude 4 in March 2015, visible to naked eye. A nova is a cataclysmic nuclear explosion on a white dwarf (in a binary system), which causes a sudden massive brightening of the star. It is different from supernova, a smaller phenomenon that does not happen at the core of an old massive star and it does not destroy the star.
The Milky Way towards the galactic center stands above the 8.2 m Subaru telescope (operated by Japan) on Mauna Kea Observatory in Hawaii. Subaru is the Japanese term for Pleiades (the Seven Sisters star cluster).
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